Article Per Year (5 Year)
p-Index From 2021 - 2026
0.23
P-Index
This Author published in this journals
All Journal Indonesian Journal of Chemistry
Hawraa Kareem Dhaef
Department of Chemistry, College of Education for Pure Science, University of Basrah, Basrah 61004, Iraq
Chemical Engineering, Chemistry & Bioengineering Chemistry

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
Novel Bis Maleimide Derivatives Containing Azo Group: Synthesis, Corrosion Inhibition, and Theoretical Study Hawraa Kareem Dhaef; Rafid Humaidan Al-Asadi; Ashwaq Abood Shenta; Mohammed Khalaf Mohammed
Indonesian Journal of Chemistry Vol 21, No 5 (2021)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.64614

Abstract

Novel derivatives of heterocyclic azo compounds have been synthesized through a free catalyst reaction. The structures of the synthesized compounds were confirmed by using different techniques such as 1H-NMR, 13C-NMR, and mass spectroscopy. The prepared derivatives were evaluated as corrosion inhibitors for mild steel after the inhibitory performance toward mild steel in 0.1 M HCl solution. The prepared derivatives, i.e. (1,1'-(((1E,1'E)-1,4-Phenylenebis(diazene-2,1-diyl))bis(4-methyl-3,1-phenylene))bis(1H-pyrrole-2, 5-dione)) 1 and (1,1'-(((1Z,1'Z)-(Oxybis(4,1-phenylene))bis(diazene-2,1-diyl)) bis(4-methyl-3,1-phenylene))bis(1H-pyrrole-2,5-dione)) 2 showed inhibition efficiency 89.22% and 91.30%, respectively at concentration 1 × 10–3 M. The isotherm adsorptions of these derivatives were found to obey Langmuir model. Furthermore, Density functional theory was used for theoretical estimation of the HOMO, LUMO, and other chemical quantum parameters. The results indicated that the synthesized derivatives displayed a corrosive inhibitory property in which derivative 2 was more effective than derivative 1. In addition, the theoretical results were in agreement with the experimental data.
Co-Authors Ashwaq Abood Shenta Mohammed Khalaf Mohammed Rafid Humaidan Al-Asadi